膠管近(jin)年來,開始采用(yong)(yong)(yong)熱(re)塑性橡膠,如熱(re)塑性聚氨(an)酯(zhi)(zhi)橡膠、聚酯(zhi)(zhi)橡膠等。膠管(guan)(guan)(guan)因(yin)易彎曲、能緩沖、重量(liang)輕及(ji)安裝(zhuang)使(shi)用(yong)(yong)(yong)方便等優點,用(yong)(yong)(yong)途(tu)十分廣泛(fan),如農業上排灌農田、港灣疏浚中(zhong)吸排泥(ni)漿,飛機(ji)(ji)、坦(tan)克(ke)、汽車及(ji)許多(duo)機(ji)(ji)械裝(zhuang)備中(zhong)的(de)(de)液壓(ya)系(xi)統、氣(qi)動系(xi)統、燃(ran)油系(xi)統均使(shi)用(yong)(yong)(yong)許多(duo)膠管(guan)(guan)(guan)。氣(qi)割操作需要(yao)較(jiao)大的(de)(de)氧氣(qi)輸出量(liang),因(yin)此(ci)與(yu)氧氣(qi)表高(gao)壓(ya)端連接的(de)(de)氣(qi)瓶(ping)(或氧氣(qi)管(guan)(guan)(guan)道)閥門應(ying)全(quan)打開,以(yi)便保(bao)(bao)證提供足(zu)夠的(de)(de)流量(liang)和穩(wen)定(ding)的(de)(de)壓(ya)力,防止低壓(ya)表雖已表示工作壓(ya)力,但使(shi)用(yong)(yong)(yong)時壓(ya)力突然(ran)下(xia)降,此(ci)時容易發生回火,并(bing)可能倒燃(ran)進入氧氣(qi)膠管(guan)(guan)(guan)而引(yin)起爆(bao)炸(zha)。在保(bao)(bao)存、運輸和使(shi)用(yong)(yong)(yong)膠管(guan)(guan)(guan)時必須注意維護,保(bao)(bao)持(chi)膠管(guan)(guan)(guan)的(de)(de)清潔和不受(shou)損壞。例如避(bi)免(mian)陽光照射,雨雪浸淋、防止與(yu)酸、堿(jian)、油類及(ji)其他有機(ji)(ji)溶劑等影響膠管(guan)(guan)(guan)質(zhi)量(liang)的(de)(de)物質(zhi)接觸。存放溫度為-15~40℃,距離熱(re)源應(ying)不小于1m.如果由于保(bao)(bao)存和使(shi)用(yong)(yong)(yong)時維護不善,或膠管(guan)(guan)(guan)使(shi)用(yong)(yong)(yong)日久老化脆硬,這(zhe)些膠管(guan)(guan)(guan)內的(de)(de)硫磺質(zhi)被分解出來,常(chang)常(chang)會因(yin)此(ci)引(yin)起回火爆(bao)炸(zha)事故。